CVE-2011-4672 in tiny-erp
Summary
by MITRE
Multiple SQL injection vulnerabilities in Valid tiny-erp 1.6 and earlier allow remote attackers to execute arbitrary SQL commands via the SearchField parameter in a search action to (1) _partner_list.php, (2) proioncategory_list.php, (3) _rantevou_list.php, (4) syncategory_list.php, (5) synallasomenos_list.php, (6) ypelaton_list.php, and (7) yproion_list.php.
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Analysis
by VulDB Data Team • 01/21/2025
The vulnerability identified as CVE-2011-4672 represents a critical SQL injection flaw affecting Valid tiny-erp version 1.6 and earlier systems. This vulnerability manifests across seven distinct PHP script files that handle list operations for various enterprise resource planning components including partner listings, product categories, reservations, and employee information. The attack vector exploits the SearchField parameter within search actions, allowing remote adversaries to inject malicious SQL commands directly into the application's database layer. This fundamental flaw in input validation creates an avenue for attackers to bypass authentication mechanisms and execute unauthorized database operations without proper authorization.
The technical implementation of this vulnerability stems from improper sanitization of user-supplied input within the search functionality of the tiny-erp application. When users submit search queries through the affected parameters, the application fails to properly escape or validate the SearchField input before incorporating it into SQL query construction. This classic input validation failure creates an environment where malicious SQL payloads can be executed with the privileges of the database user account under which the application operates. The vulnerability is classified under CWE-89 as SQL injection, specifically demonstrating the dangerous combination of user-controllable input and direct SQL query construction without proper sanitization mechanisms.
The operational impact of this vulnerability extends far beyond simple data retrieval manipulation. Remote attackers can leverage this weakness to extract sensitive information from the database, including user credentials, financial records, and business-critical data. The attack surface encompasses the entire enterprise resource planning system, as the vulnerable scripts handle core business functions including partner management, product categorization, reservation systems, and employee records. Additionally, attackers can potentially modify or delete database entries, leading to data integrity compromise and potential system disruption. The vulnerability's remote nature means that attackers do not require physical access to the system, making it particularly dangerous for web-hosted applications.
Security professionals should implement immediate mitigations including input validation and parameterized query implementation across all affected PHP scripts. The recommended approach involves replacing direct SQL query construction with prepared statements that separate SQL logic from user input. Network segmentation and web application firewalls can provide additional defense-in-depth measures to monitor and block suspicious SQL injection attempts. Organizations should also conduct comprehensive security assessments to identify similar vulnerabilities in other application components and ensure proper database access controls are implemented. This vulnerability aligns with ATT&CK technique T1190 for exploitation of remote services and T1071.004 for application layer protocol usage, highlighting the need for robust application security controls and continuous monitoring of database access patterns.